Box Film Capacitor

Made of metallized polypropylene film, it has low loss, small size, small internal temperature rise, and some small capacity can be produced by series film, with high pressure resistance. Plastic shell packaging, flame retardant liquid epoxy potting, good reliability, and extremely small appearance error.

Product Introduction

Suitable for various circuits requiring small size, low loss, high capacity and high precision

Features

Metallized polypropylene film, small inherent temperature rise, high voltage resistance.
Non-inductive metal structure, identical appearance.
Box type by liquid flame retardant, epoxy potting, good insulation performance.
Moisture-proof, flame retardant.
Low dissipation factor.
Excellent self-healing performance, good stability and reliability.

SPECIFICATIONS
Climatic Category	40/085/21
Rated Voltage	63V, 100V, 250V, 400V, 630V, 1000V
Capacitance Range	0.0010Μf ~0.15μF
Capacitance Tolerance	±5%(J), ±10%(K)
Voltage Proof	1.6U_R
Insulation resistance	C≤0.33μF≥3000MΩ (20℃, 1min) C>0.33μF≥5000S (20℃, 1min)
Tangent of loss angle	≤0.008 % (20℃, 1KHZ)

DRAWING: (mm)

Advantage

Vertical integration capability: independent control of core processes such as thin film coating, slitting and winding to reduce supply chain risks.
Strict quality control: IATF 16949 automotive grade certification, full inspection of voltage resistance, ESR, and life span for each batch of products.
Rapid mass production capability: flexible production line supports small customized orders and large-scale deliveries
Process Patent Reserve: We have core patents such as metallized edge thickening and self-healing technology to enhance product reliability.
Fully automated production line: Integration of intelligent equipment to improve efficiency and reduce human error.

Application Scenario

Marine electric propulsion system (harmonic suppression)
Inverter (DC bus capacitance, output filtering)
Servo drive (IGBT module protection)
UPS uninterruptible power supply (input/output filtering)
Electric welding machine (high-frequency resonant circuit)
Laser cutting power supply (pulse energy storage)

FAQ

Q: How does frequency affect film capacitors?

A: Losses increase at high frequencies, so it is necessary to choose materials with good high frequency characteristics (e.g. PP or PPS).

Q: What is the angular tangent of loss (tanδ)?

A: The smaller the tangent of the loss angle, the higher the efficiency of the capacitor and the lower the heat generation.

Q: What is the application of film capacitors in new energy field?

A: Used in photovoltaic inverters, wind power converters, electric vehicle motor drives, etc.

Q: What type of film capacitors are suitable for high frequency circuits?

A: Polypropylene (PP) capacitors are preferred for their low tanδ and high frequency stability.

Q: Role in power supply filtering?

A: Filter out high frequency noise, improve power quality, often used in conjunction with electrolytic capacitors.

ZZEC Corporate Profile

Was established in 2007, the company is located in Yue yang city of Hunan province Yue yang county Bai Xiang town industrial zone, the enterprise from the beginning of entrepreneurship, "the spirit of customer first, forge ahead" spirit, focus on satisfy clients' demand for miniaturization, from at home and abroad to introduce advanced machines, to form a number of automated production line, at the same time subminiature automatic assembling machine imported from Italy, Specializing in the production of MINI BOX capacitor (super small BOX potting capacitor) and super small size, high precision series capacitor. To achieve annual shipments of about 2 billion film capacitors. Product quality is the survival foundation of the enterprise, relying on ISO9001 quality system, we use high-quality raw materials and high reliability of the process, thick accumulation to provide more than 300 agents and 1500 final customers with stable and reliable products and customized services. Step by step to develop into an influential enterprise in the industry